Coded key blank



FIG. I is a perspective view of a coded key blank in an upright position showing my new design;

FIG. II is a perspective view of the other side of the blank in lying position;

FIG. III is an elevational view of the side shown in FIG. 1;

FIG. IV is a front view of the blank shown in FIG. 1; and

FIG. V is a top plan view of the blank shown in FIG. I. 

The ornamental design for a coded key blank, as shown and described. 